Improved bed-bottom



To WnoM rr 'MAY AooNoEnN:

@dass gisten A Letters Patent-No. 75,926, datedMarctM, 1868.

Inrnovrn ssnesorron.

@its Silberne diemen im trentina-wint mit writing niet ni tlgefstme.

p Be it known that I, ANDREW W. KENDRIGK, of Xenia, Greene county,l Ohio, haveinvented a new and useful Bed-Botto'mej and I hereby declare thefolloivng to be afull, clear, 'and enact description-thereof, reference being had tethe acompanying drawings, making partof this specification.

My invention relates to'a 'elica-p, simple, and easily-constructed bed-bottom, applicable to any bedstead,V and which,"wlii.le equal to the best for ordinaryuse, is'pculiarly adapted tothe use of'v invalide.. I

Figure 1 is a longitudnalseotion of a bed-bottom embodying my invention. Figure 2 is a' perspectivel view: showing Ithe same in use, a portion 'of one rail ofthe bedstead being broken away. AFigure-3 is a View of the head-raising pawls orl'evers detached;A v I 'A Figures 4 land 5 show modiiicationsofhny head-raising mechanism..

Figure 6 is a top view of a Slat-end an'dgidefgroove. l

Figure 7 is a transverse section of one sidefof my bedbottom.

A may represent a bedstend of any ordinaryconstruction. I provide -for my .bed-bottom an open rectanglarframe, composed of two L-fom`ed pieees,.l3 C, B firmly connected by cross-rails D. Of the portions B and C on theorie side, and B and Con the other side, vthe horizontal parts B and Bserve to support two Iseries'of helicalsprings'EE, which are' also attached `to the same. 'i These springs are eompo'sed of wire of di'crent thicknesses, ande-ach opposite pair of said springs'supports'one of a series of transverse slats F.

v The stii'est-springs, orthose composed of the thickest wire, are situated alt the'midlength of the bedbottom, and'those of the thi'nnestovvire'towards the ends of. the same.' Bymeans of this graduated' arrangement of springs,

I am enabledto apportion the resistancewith great nicety to the weight to be supported.v The heavier or middle portions of the occupants bodyfbeing thus made t0` rest npon thestrongest springs, the Whole person is com folgtablyfsupportcd. For greater security, I pass the upper and lower extremities of 'the springs into the parts F andB respectively. i v

In order to guide and restrict the slats to a vertical play, I cause-their ends Lto enter and oecupvgrooves or gains c,eut,vertically'in the inner sides of'ithe parts 0,and these grooves, or the' ends of the slats, should be lined or `encased in vulcanized vIndia-rubber, as shown at G,'ig. 6, in order-,to preventcreaking, and exclude bugs and other vermin. f'

In order to `enabl'ethe elevation of thehead or upper portion of the bed-bottom, I provide an adjustable frame, whose sides b c, b c eorrespondto those, B C, B' C', of the mein frame of the bed-bottom, to which I-unite Vthem by means of hinges,.p.vots, bolts, or screns, H, andl this frame supper-tea series of springsand slats corresponding tn those of tlie main frame of vthebed-bottom, and which are shown in the drawing correspondingly lettered. Y To enable the frame b cbzc to be elevatedfand heldt any, height, I pivot thereto, by means of a shaft, K,joi1rnalled in the sides ofxthesaid'frame, levers-K K', whose lower ends are lpoint'ed'and enter racks L on theA parts BB of the bottom. The leversK K terminate in curved handles K, both lto enable them to be; more readily reachcdin Vtheir 'depressed condition,` and more rmly and conveniently grasped when elevated.

While preferring the-arrangement asabove described, I desire to be understoodas not limiting the invention' strictly"thereto,. so long as the results are obtained by means substantially equivalent for example, the levers K K maybe replaced by simple pawls KW, operated by one or more cords, N, as shown in igA, or the racks may be placed on the edjnstableframe, and 'be supported on shiftable pins projecting from levers P, pivoted to the b ottom proper, as in fig.` 5. The sides of the bedstead may take the placc and perform'the vfunctions of the portions() of the bottom..

A suilicient vspace or interval should be left between' the sides of the bedstead and bottom respectively, t0 enablel the sucking in of thebed-clothes.

I claim hereinas new, and of: my invention- 1. The arrangement of outer frames B B C', and` inner and adjustable frame b 'b c', racks L Ii, and pawls or levers K, in combination with the series .of slats supported transversely on the helical springs E,

lresting -upon the ledges B B and b b of the oute` and inner framesrespectively, substantially as sstA forth.

2. In the described combination, the graduated or decreasing-series of helical springs E, with the stationary and adjustable frames B C, B C and b c, b' c' respectively.

In testimony of which invention, I hereunto setmy hand.

ANDREVYW. KENDR-ICK.

Witnesses:

GEO. H, KNIGHT,

JAMES H. LAYMAN. 

